Freifunk-Troisdorf/meshviewer
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map: draw only labels present on map using rtrees

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This commit is contained in:
Nils Schneider 2015-04-19 12:22:09 +02:00
parent 9d2318dce1
commit 22b49c1a55
5 changed files with 100 additions and 67 deletions
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1
app.js
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@ -12,6 +12,7 @@ require.config({
"numeral": "../bower_components/numeraljs/min/numeral.min",
"numeral-intl": "../bower_components/numeraljs/min/languages.min",
"virtual-dom": "../bower_components/virtual-dom/dist/virtual-dom",
"rbush": "../bower_components/rbush/rbush",
"helper": "../helper"
},
shim: {

3
bower.json
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@ -23,7 +23,8 @@
"numeraljs": "~1.5.3",
"roboto-fontface": "~0.3.0",
"virtual-dom": "~2.0.1",
"leaflet-providers": "~1.0.27"
"leaflet-providers": "~1.0.27",
"rbush": "https://github.com/mourner/rbush.git#~1.3.5"
},
"authors": [
"Nils Schneider <nils@nilsschneider.net>"

35
lib/map.js
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@ -1,7 +1,7 @@
define(["map/clientlayer", "map/labelslayer",
"d3", "leaflet", "moment", "locationmarker",
"d3", "leaflet", "moment", "locationmarker", "rbush",
"leaflet.label", "leaflet.providers"],
function (ClientLayer, LabelsLayer, d3, L, moment, LocationMarker) {
function (ClientLayer, LabelsLayer, d3, L, moment, LocationMarker, rbush) {
var options = { worldCopyJump: true,
zoomControl: false
}
@ -300,6 +300,15 @@ define(["map/clientlayer", "map/labelslayer",
return L.circle(barycenter, r * config.mapSigmaScale)
}
function mapRTree(d) {
var o = [ d.nodeinfo.location.latitude, d.nodeinfo.location.longitude,
d.nodeinfo.location.latitude, d.nodeinfo.location.longitude]
o.node = d
return o
}
self.setData = function (data) {
nodeDict = {}
linkDict = {}
@ -349,11 +358,23 @@ define(["map/clientlayer", "map/labelslayer",
groupNew = L.featureGroup(markersNew).addTo(map)
groupLost = L.featureGroup(markersLost).addTo(map)
clientLayer.setData(data.nodes.all.filter(online).filter(has_location))
labelsLayer.setData({online: nodesOnline.filter(has_location),
offline: nodesOffline.filter(has_location),
new: data.nodes.new.filter(has_location),
lost: data.nodes.lost.filter(has_location)
var rtreeOnlineAll = rbush(9)
var rtreeOnline = rbush(9)
var rtreeOffline = rbush(9)
var rtreeNew = rbush(9)
var rtreeLost = rbush(9)
rtreeOnlineAll.load(data.nodes.all.filter(online).filter(has_location).map(mapRTree))
rtreeOnline.load(nodesOnline.filter(has_location).map(mapRTree))
rtreeOffline.load(nodesOffline.filter(has_location).map(mapRTree))
rtreeNew.load(data.nodes.new.filter(has_location).map(mapRTree))
rtreeLost.load(data.nodes.lost.filter(has_location).map(mapRTree))
clientLayer.setData(rtreeOnlineAll)
labelsLayer.setData({online: rtreeOnline,
offline: rtreeOffline,
new: rtreeNew,
lost: rtreeLost
})
updateView(true)

82
lib/map/clientlayer.js
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@ -6,6 +6,13 @@ define(["leaflet"],
this.redraw()
},
drawTile: function (canvas, tilePoint) {
function getTileBBox(s, map, tileSize, margin) {
var tl = map.unproject([s.x - margin, s.y - margin])
var br = map.unproject([s.x + margin + tileSize, s.y + margin + tileSize])
return [br.lat, tl.lng, tl.lat, br.lng]
}
if (!this.data)
return
@ -13,51 +20,54 @@ define(["leaflet"],
var s = tilePoint.multiplyBy(tileSize)
var map = this._map
function project(coords) {
var p = map.project(new L.LatLng(coords[0], coords[1]))
return {x: p.x - s.x, y: p.y - s.y}
}
var nodes = this.data
var ctx = canvas.getContext("2d")
var margin = 50
var bbox = getTileBBox(s, map, tileSize, margin)
var nodes = this.data.search(bbox)
if (nodes.length === 0)
return
var ctx = canvas.getContext("2d")
var distance = 12
var radius = 3
var a = 1.2
var startAngle = Math.PI
ctx.beginPath()
nodes.forEach(function (d) {
var p = project([d.nodeinfo.location.latitude, d.nodeinfo.location.longitude])
if (p.x + margin < 0 || p.y + margin < 0 || p.x - tileSize - margin > 0 || p.y - tileSize - margin > 0)
return
var p = map.project([d.node.nodeinfo.location.latitude, d.node.nodeinfo.location.longitude])
var clients = d.node.statistics.clients
var clients = d.statistics.clients
if (d.clients === 0)
return
if (clients === 0)
return
var distance = 12
var radius = 3
var a = 1.2
var startAngle = Math.PI
var angle = startAngle
p.x -= s.x
p.y -= s.y
for (var i = 0; i < clients; i++) {
if ((angle - startAngle) > 2 * Math.PI) {
angle = startAngle
distance += 2 * radius * a
}
var angle = startAngle
var x = p.x + distance * Math.cos(angle)
var y = p.y + distance * Math.sin(angle)
ctx.moveTo(x, y)
ctx.arc(x, y, radius, 0, 2 * Math.PI)
var n = Math.floor((Math.PI * distance) / (a * radius))
var angleDelta = 2 * Math.PI / n
angle += angleDelta
for (var i = 0; i < clients; i++) {
if ((angle - startAngle) > 2 * Math.PI) {
angle = startAngle
distance += 2 * radius * a
}
})
ctx.fillStyle = "rgba(153, 118, 16, 0.5)"
ctx.fill()
}
var x = p.x + distance * Math.cos(angle)
var y = p.y + distance * Math.sin(angle)
ctx.moveTo(x, y)
ctx.arc(x, y, radius, 0, 2 * Math.PI)
var n = Math.floor((Math.PI * distance) / (a * radius))
var angleDelta = 2 * Math.PI / n
angle += angleDelta
}
})
ctx.fillStyle = "rgba(153, 118, 16, 0.5)"
ctx.fill()
}
})
})

46
lib/map/labelslayer.js
View File

@ -6,6 +6,13 @@ define(["leaflet"],
this.redraw()
},
drawTile: function (canvas, tilePoint) {
function getTileBBox(s, map, tileSize, margin) {
var tl = map.unproject([s.x - margin, s.y - margin])
var br = map.unproject([s.x + margin + tileSize, s.y + margin + tileSize])
return [br.lat, tl.lng, tl.lat, br.lng]
}
if (!this.data)
return
@ -13,41 +20,34 @@ define(["leaflet"],
var s = tilePoint.multiplyBy(tileSize)
var map = this._map
function project(coords) {
var p = map.project(new L.LatLng(coords[0], coords[1]))
return {x: p.x - s.x, y: p.y - s.y}
}
function projectNodes(d) {
return { p: project([d.nodeinfo.location.latitude, d.nodeinfo.location.longitude]),
o: d
}
var p = map.project([d.node.nodeinfo.location.latitude, d.node.nodeinfo.location.longitude])
p.x -= s.x
p.y -= s.y
return {p: p, o: d.node}
}
var margin = 150
function onTile(d) {
return d.p.x + margin > 0 ||
d.p.y + margin > 0 ||
d.p.x - tileSize - margin < 0 ||
d.p.y - tileSize - margin < 0
}
var margin = 256
var bbox = getTileBBox(s, map, tileSize, margin)
var nodesOnline = this.data.online.search(bbox).map(projectNodes)
var nodesOffline = this.data.offline.search(bbox).map(projectNodes)
var nodesNew = this.data.new.search(bbox).map(projectNodes)
var nodesLost = this.data.lost.search(bbox).map(projectNodes)
var ctx = canvas.getContext("2d")
var nodesOnline = this.data.online.map(projectNodes).filter(onTile)
var nodesOffline = this.data.offline.map(projectNodes).filter(onTile)
var nodesNew = this.data.new.map(projectNodes).filter(onTile)
var nodesLost = this.data.lost.map(projectNodes).filter(onTile)
var distance = 10
ctx.font = "12px Roboto"
ctx.textBaseline = "middle"
ctx.textAlign = "left"
ctx.lineWidth = 2.5
var distance = 10
function drawLabel(d) {
ctx.strokeText(d.o.nodeinfo.hostname, d.p.x + distance, d.p.y)
ctx.fillText(d.o.nodeinfo.hostname, d.p.x + distance, d.p.y)
ctx.strokeText(d.o.nodeinfo.hostname, d.p.x + distance, d.p.y)
ctx.fillText(d.o.nodeinfo.hostname, d.p.x + distance, d.p.y)
}
ctx.fillStyle = "rgba(212, 62, 42, 0.6)"